The Death Star (Aetherflux)

Whenever you cast a spell, you gain 1 life for
each spell you've cast this turn. Pay 50 life:
Aetherflux Reservoir deals 50 damage to
target creature or player.
"That blast came from the Death Star! That thing's
operational! Home One, this is Gold Leader."
said General Calrissian.
"We saw it. All craft prepare to retreat." ordered
Admiral Ackbar.